namei returns locked parent dir inode for create / unlink

don't hold fd table lock across idecref() (latter does block i/o)
idecref calls iput() in case last ref -> freeing inode
dir size is 512 * # blocks, so readi/writei &c work
unlink deletes dirent even if ip->nlink > 0

1 files changed, 1 insertions, 1 deletions

diff --git a/usertests.c b/usertests.c
index 2d6b065..c3e9113 100644
--- a/usertests.c
+++ b/usertests.c
@@ -231,7 +231,7 @@ void
 createdelete()
 {
   int pid, i, fd;
-  int n = 10; // for now, fit in one directory block
+  int n = 20;
   char name[32];
 
   pid = fork();